Method for interfacing rate adaptation processing unit and board messenger processing unit in a wireless data communication processing apparatus

Abstract

A method for interfacing between a rate adaptation processing unit (RAPU) and a board messenger processing unit (BMPU) in a wireless data communication processing apparatus is disclosed, wherein the method includes the following steps: forming common header in a first address of an allocated data buffer, the common header being usable commonly by a rate adaptation (RA) protocol data (RAPD) and a board messenger (BM) protocol data (BMPD) when the respective protocol data (PD) is received through the interfacing of the RAPU or the BMPU; storing the received PD in an information field; processing the common header by either the RAPU or the BMPU, depending on the flow direction of the protocol data between a communication system and the other communication system; and thereafter, placing a message pointer at the first address of the data buffer for receiving next set of protocol data.

What is claimed is:  
     
       1. A method for interfacing between a rate adaptation processing unit (RAPU) and a board messenger processing unit (BMPU) in a wireless data communication processing devices, said method comprising the steps of: 
       in response to a group of protocol data (PD) transferred from one communication system to another communication system, forming a common header field having a rate adaptation (RA) header and a board message (BM) header and a data field in a predetermined area of a data buffer, wherein said common header field is commonly shared by a rate adaptation (RA) protocol and a board message (BM) protocol;  
       setting a protocol offset for said RA header and said BM header in a predetermined area of said common header field to designate the start of said RA header and said BM header, and setting the first address of each said RA header and said BM header by a message pointer, respectively, to indicate the beginning point for receiving said group of said protocol data in said data buffer;  
       processing said common header field by either said rate adaptation processing unit or said board message processing unit for transmission, depending on flow direction of said group of said protocol data between said one communication system and said another communication system; and,  
       transmitting said processed common header field and said data field via a queue interface disposed between said rate adaptation processing (RAPU) and said board messenger processing unit (BMPU), and thereafter locating said message pointer at the first address of said common header for receiving next set of said protocol data in said data buffer.  
     
     
       2. A method for interfacing between a rate adaptation processing unit (RAPU) and a board messenger processing unit (BMPU) in a wireless data communication processing devices, said method comprising the steps of: 
       receiving a group of protocol data (PD) in a rate adaptation-receiving unit (RARU) of said rate adaptation processing unit (RAPU) via a rate adaptation interface (RAI);  
       allocating a data buffer according to said received protocol data;  
       forming a common header field having a rate adaptation (RA) header and a board message (BM) header and a data field in a predetermined area of said data buffer, wherein said common header field is commonly shared by a rate adaptation (RA) protocol and a board message (BM) protocol;  
       setting a protocol offset for said RA header and said BM header in a predetermined area of said common header field to designate the start of said RA header and said BM header, and setting the first address of each said RA header and said BM header by a message pointer, respectively, to indicate the beginning point for receiving said group of said protocol data in said data buffer;  
       processing only said RA header starting from the first address of said RA header indicated by said RA pointer by said rate adaptation processing unit (RAPU) for transmission;  
       transmitting said processed RA header of said common header field and said data field via a queue interface disposed between said rate adaptation processing (RAPU) and said board messenger processing unit (BMPU);  
       processing only said BM header starting from the first address of said BM header indicated by said BM pointer by said board messenger processing unit (BMPU) for transmission;  
       transmitting said processed BM header of said common header field and said data field via a board messenger interface; and,  
       locating said BM pointer at the first address of said common header for receiving a next set of protocol data from said rate adaptation processing unit (RAPU) via said queue interface.  
     
     
       3. A method for interfacing between a rate adaptation processing unit (RAPU) and a board messenger processing unit (BMPU) in a wireless data communication processing devices, said method comprising the steps of: 
       receiving a group of protocol data (PD) in a board messenger receiving unit (BMRU) of said board messenger processing unit (BMPU) via a board messenger interface (BMI);  
       allocating a data buffer according to said received protocol data;  
       forming a common header field having a rate adaptation (RA) header and a board message (BM) header and a data field in a predetermined area of said data buffer, wherein said common header field is commonly shared by a rate adaptation (RA) protocol and a board message (BM) protocol;  
       setting a protocol offset for said RA header and said BM header in a predetermined area of said common header field to designate the start of said RA header and said BM header, and setting the first address of each said RA header and said BM header by a message pointer, respectively, to indicate the beginning point for receiving said group of said protocol data in said data buffer;  
       processing only said BM header starting from the first address of said BM header indicated by said BM pointer by said board messenger processing unit (BMPU) for transmission;  
       transmitting said processed BM header of said common header field and said data field via a queue interface disposed between said rate adaptation processing (RAPU) and said board messenger processing unit (BMPU);  
       processing only said RA header starting from the first address of RA header indicated by said RA pointer by said rate adaptation processing unit (RAPU);  
       transmitting said RA header of said common header field and said data field via a rate adaptation interface; and,  
       locating said RA pointer at the first address of said common header for receiving a next set of protocol data from said board messenger processing unit.